libata: Add H2D FIS "auxiliary" port flag
Add a new port flag, ATA_FLAG_FPDMA_AUX, used to indicate
support for transmission of the H2D FIS 'auxiliary' field.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 5064f3e..8d41c57 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1288,6 +1288,14 @@
*/
if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
pi.flags |= ATA_FLAG_FPDMA_AA;
+
+ /*
+ * All AHCI controllers should be forward-compatible
+ * with the new auxiliary field. This code should be
+ * conditionalized if any buggy AHCI controllers are
+ * encountered.
+ */
+ pi.flags |= ATA_FLAG_FPDMA_AUX;
}
if (hpriv->cap & HOST_CAP_PMP)
